Next-Generation Rendering

[zzxzzk115]

This issue tracks the implementation of libvultra's next-generation rendering features, including GPU-driven hybrid rendering and radiance-field-based techniques.

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GPU-driven Hybrid Renderer

• Core GPU-driven pipeline

  • GPU scene representation
  • Draw/instance buffer generation
  • GPU frustum culling
  • Hi-Z occlusion culling

• Visibility & Depth

  • Depth pre-pass
  • Hi-Z generation
  • Visibility buffer

• Lighting pipeline

  • Tile classification pass
  • Light list generation
  • Tile/cluster light culling
  • Deferred shading pass
  • Forward+ transparent pass

• Shadows

  • Cascaded Shadow Maps (CSM)
  • PCSS filtering
  • GPU-driven shadow rendering

• Global Illumination

  • LPV
  • DDGI
  • SDFGI
  • VXGI

• Ray Tracing Integration

  • Ray tracing scene build (TLAS / BLAS)
  • Hybrid ray-traced shadows
  • Hybrid ray-traced reflections
  • Opacity Micromap (alpha masking optimisation)
  • Denoising

• Debug & Visualisation

  • Light tiles visualisation
  • Overdraw visualisation
  • Visibility buffer debug
  • GPU culling debug

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Gaussian Splatting

• Point cloud format support

  • SPZ loader
  • PLY loader
  • Unified point cloud data structure
  • Point cloud asset format

• Rendering abstraction

  • GaussianSplatRenderer component
  • GaussianSplat asset
  • Scene integration
  • Renderer registration

• Rendering implementation

  • GPU splat rasterisation
  • Sorting
  • Visibility & culling
  • LOD system

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Engine Integration

• Renderer registration
• SRP integration
• FrameGraph integration
• Editor support
• Asset pipeline integration
• Debug tooling